Roofing material



Dec. 9, 1924.

T. B. LEHON ROOFING MATERIAL Filed .May 8, 1922 17, A? fig mx: Y A

Cil

Patented Dec. 9, 1924.

UNITED STATES 1,518,988 PATENT OFFICE.

THOMAS B. LEI-ION, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE LEHON COMPANY, OF

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ROOFING MATERIAL.

Application filed May 8,

fl 10 all LU/0m t may concern.' v

Be it known that I, THOMAS l5. LEHON, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, haveinvented certain new. and useful Improvements in Roofing Materials, of which the following is a specification, reference being had to the accompanying dra-Wings.

My invention relates to improvements in that type of roofing that is made in sheet form and used either in long strips vof the Width of the original sheet or! in small sheets or pieces cut into the shape and size of a shingle orv several shingles combined and laid in4 overlapping relation in the Way of an ordinary shingled roof. Such roofing material as now very generally made comprises a base of .fibrous material to which asphalt or similar plastic material is applied While hot and forced into and upon the fabric base by suitable rollers, and having upon o-ne surface of the sheet so formed a. coating of eomminuted or granular material, such as rock or slate, which is pressed upon the sheet and adheres thereto. I have found that by having imparted to the plastic material and the granular material carried thereby a series'vof"corrugations and having the granular material evenly distributed and embedded With substantial uniformity over the surface of the plastic material so as to practically exclude from vie-W such plastic material a roofing is provided that has many advantages over the type of roofing referred to that is.no\v in general use, all as hereinafter more particularly pointed out.

In the accompanying drawing,-

Fig. l is a perspective view of a' roll of flexible rooting material embodying my improvements Fig. 2 is a perspective view of a piece of such roofing material and of a size and shape to adapt it for use as a shingle;

Fig. 3 is a plan View of a portion of my improved roofing material; and

Fig. 4 is an enlarged cross-sectional view tlnpugh the piece of rooting material shown in i .3.

Botgh Figs. 3 and 4 arel very much enlarged.'

Referring to the several figures of the drawing,-A 'represents a roll of flexible 1922. Serial No. 559,327.

roofing in which the lines extending longitudinally thereof are intended to indicate the corrugations that are shown more clearly 'in the enlarged views of a piece cut` from such a roll and designed to be used as separate shingles. yOf course, it' desired, the co-rrugations might be formed transversely of the sheet that forms the roll instead of -longitudinally thereof: A complete shingle is shown in Fig. 2 and is designated as B, as vare aslo the enlarged portions of such shingle that are shown in Figs. 3 and 4.

The roofing material comprisesv a base L of fibrous material that, as usualhas been saturated and coated With asphalt or similar plastic material While heated, and upon the surface of which, While the said coating material was hot, has been pressed so as to adhere thereto a quantity of granular material such as rock, slate, or other similar suitable substance. To this granular-coated rooting material sol formed I impart a plurality of corrugations, which will be done While the long sheet is lWarm from having the hot coating applied thereto and While such coating material is sufficiently plastic to move freely under the influence of the corrugating means, which means Will preferably be a fluted roll. The ridges of these corrugations are indicated by b, and the narrow and comparatively deep valleys .between such ridges are indicated by c. It will be noted that each ridge is composed-of a quantity of the plastic material that has been forced up from the surface of the base and that the entire surfaces of the corrugations are covered With the comminuted material that was applied to the plastic coating before the corrugations were formed, such comminuted material on the corrugations forming a protective layer of approximately uniform character ove;` the coating material, that is, such comminuted material is not forced into theI plastic coating material to approxi mately any greater extent at one place than it is at any other place. It is ver desirable to have this uniformity of app ication of the covering comminuted material to the ridged or corrugated plastic material, becauselWhere particles of such materials are forced unequally into the plastic material the result will be to so completely embed some of the particles thereof as to brin into View at such places the coating materlal on the surface of the base, which, under certain 'Go i llO conditionsk-may ltend to produce veectfslthat will give rise to the belief that the roof as themselves cannot inv anywise convey the impression ofI a defective piece of roofing material, as the appearance of a roof formed with my improved material is uniform throughout.. The fibrous base is practically una'ected by the corrugating that is imparted to the plastic and comminuted ma,- terials and hence retains, as is desirable, a smooth under surface.

' Corrugatng the rooting material adds very materially to its strength or rigidityc whereby it better resists any tendency--es` pecially when in the form of a shingle-to shingles of this type as heretofore constructed. It will be noted that the valleys 4between the ridges are quite narrow, and so forming them is very advantageous in that it necessarily results in a much more rigid piece of material than if the ridges were widely separated.

4 What I claim as my invention and desire to secure by Letters Patent, is-

A roofing member comprising a base having a coating of plastic material thereon,' in which said coating is a series of corrugations comprising ridges separated by narrow and comparatively deep valleys, said corrugations being covered with granular material, that is substantially uniformly embedded in and conceals from view the said coating of plastic materiah THOMAS B. LEHON. 

